Shielding Spring Shell Radial Axial Resilience Vibration
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Solution Overview
Problem
High stresses such as vibrations in plug-in systems can lead to interruptions in the continuous contact of shielding connectors, compromising electromagnetic compatibility.
Innovation Solution
A shielding spring shell with radially and axially resilient spring sections, integrated into a shell body, ensures continuous contact by adapting to relative motions between connectors through a combination of radial and axial spring forces, maintaining electromagnetic shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid shielding connector is used, then the shielding structure is stable and easy to manufacture, but the continuous contact is interrupted under high stresses such as vibrations
Solution Approach 1:
The shielding connector is transformed from a rigid static structure to a dynamic resilient structure. The shell is designed with radially resilient and axially resilient spring sections that can dynamically adapt to relative motions and vibrations between connectors, maintaining continuous contact through elastic deformation rather than rigid fixation.
Solution Approach 2:
The mechanical properties of the shielding shell are changed by introducing resilient spring sections with specific elasticity characteristics. The radial and axial spring sections have controlled stiffness parameters that allow the shell to deform elastically under stress, absorbing vibrations while maintaining contact pressure, thus resolving the contradiction between rigidity and vibration resistance.
2Reliability
If a resilient spring shell is used, then the continuous contact is maintained under vibrations, but the manufacturing complexity increases
Solution Approach 1:
The shielding shell is segmented into distinct functional zones: radially resilient spring sections for radial compensation, axially resilient spring sections for axial compensation, and fillet regions for stress distribution. This segmentation allows each part to be optimized for its specific function while simplifying the overall manufacturing process through modular design and standardized spring section fabrication.
Solution Approach 2:
The shielding connector employs a flexible shell design with integrated spring sections instead of rigid thick-walled construction. The thin-walled resilient shell with strategically placed spring sections achieves the required flexibility and vibration resistance while reducing material usage and simplifying forming processes compared to a fully rigid thick structure.
3Ease of manufacture
If the shielding connector is made rigid, then the manufacturing is simpler, but the electromagnetic compatibility is compromised under stress
Solution Approach 1:
The shielding connector transitions from a static rigid structure to a dynamic resilient structure that can adapt to vibrations and relative motions. The radially and axially resilient spring sections enable the shell to maintain continuous electrical contact with the mating connector during vibrations, ensuring uninterrupted electromagnetic shielding and preventing harmful electromagnetic interference.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The shielding spring shell effectively maintains electromagnetic compatibility by ensuring continuous contact and compensating for relative motions between connectors, preventing interruptions due to vibrations and other stresses.
Implementation Method 1
one of the spring sections is an at least radially resilient radial spring
Implementation Method 2
another of the spring sections is an at least axially resilient axial spring
Data Source
AI summary
A shielding spring shell has a contact tab with a pair of spring sections adjoining a fillet. One of the spring sections is an at least radially resilient radial spring and another of the spring sections is an at least axially resilient axial spring.